/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/NiagaraNodeInput.h
Generate a unique sort index based off the existing nodes in the system.
static int32 GenerateNewSortPriority ( const [UNiagaraGraph](API\Plugins\NiagaraEditor\UNiagaraGraph) * Graph, [FName](API\Runtime\Core\UObject\FName) & ProposedName, [ENiagaraInputNodeUsage](API\Plugins\Niagara\ENiagaraInputNodeUsage) Usage )